Answer
Given,
Periscope uses 45-45-90 prisms with total internal reflection adjacent to 45°.
refractive index of water, n_a = 1.33
refractive index of glass, n_g = 1.52
When the light enters the water, water will act as a lens and when we see the object from the periscope the object shown is farther than the usual distance.
Answer:
the answer is that you will never be able to find two pretty bestfriends
Answer:
(a) v = 32 t
h = 16 t^2
g = 32 ft/s^2
(b) 64 ft/s
Explanation:
height, h = 64 feet
g = - 32 ft/s^2
(a) Let the time is t .
Let the velocity after time t is v.
Use first equation of motion
v = u + at
- v = 0 - 32 t
v = 32 t
Let the distance is h from the top.
Use second equation of motion
The acceleration is constant for entire motion.
(b) Let the velocity is v as it hits the ground. Use third equation of motion
If the skater isn't holding on to anything, and there's no friction between the skates and the floor, then there's no way for any force to reach her and make her start moving.
-- No matter what the bus does, the skater stays right where she is.
-- But at the same time, the bus starts moving forward.
-- So if the bus-driver looks in his mirror, he see the skater moving down the aisle <em>backwards</em>, away from the driver, towards the <em>back of the bus</em>.
Answer:
Formula for constant-speed = Total distance / Total time taken
Explanation: